Thomas walker and thomas ferdinand walker



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- i ENGLAND.

l IMPROVEMENT IN'APPARATUS FOR TAKINGSOUNDINGS.

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TO ALL TQ WI- IOM IT MAY ONCERNV v .Be it known that we, THOMASWALKERand THOMAS'FERDINAND WALKER, of Oxford street, Birmingham,

'in the county of Warwick, England, engineers, subjects of the QueenofGreat Britaimhavc invented or discoverednew'and -useful Improvements inMeans or Apparatus for Taking Soundingsg and wedo hereby declare thatthe following is a full and exact description thereof, reference beinghad to the accompanying drawings, and t"o the letters of referencemarked thereon.

Before usi-ng sounding-machines for the purpose oi' taking deep-watersoundings, it is desirable'to turnthe indicating-wheels so that one ofthe figures thereon may be delin'tely opposite a fixed pointer, in orderto ascertain correctly, after taking a sounding, the depthof'suchsounding by the extent ot' motion which has been given to vsuch wheels;and it is usual to move such wheels round, so that the pointers maypoint to the highest figures-thereon as astarting-point. Theadjustment'forthis purpose is' ordinarily obtained `by liftng'thelocking-lever, and th'en moving the wheel-work tothestarting-pointdetermined upon by turning the vane-spindle,

an operation which is tedious in itself, and involves loss ottime toperform it.

In the specification of LettersPate'nt granted to me, the said THOMASWALKER, in England, and bearing date the 13th o`- December, 1.861,'No.313, I describeda method which partially remedied this evil, byformingthe 4figures of oneof the wheels on a. separate plate., which is borneby lspring-pressure `to its wheel, so as to give it a tendency, by thefriction obtained, to move-with that wheel. By turning this plate on itswheel, the adjustment of the guresto the pointer-'for that wheel isobtained. The other indicating-wheel (when a secondary indicating-wheelwas used) hadstilhto beturned b y the motion of the vane-spindle, asheretofore.

4Our present improvements consist-in setting-#both indicating-wheels atthe'same time, and in alording facility'for setting the wheel-work foruse, and then, after use, ascertaining the extent of motion obtainedv.thereto without ynecessarily looking-'at the 4instrument.

For 'this purpose there is a. plate connectedv to one ofthe'indicating-wheels, to move with i-t by springpressure, and thespindle of' this' plate carries -apinionl, the teethot' which take intothe teeth of the other indicating-wheels. This spring-plate is,'as inthe specication referred to, capable of being movedby simplyovercoming'the'frictional pressure applied to it without turningits'wheel,` and it is notched at its edge opposite.

the gures lthereon, and is provided with a notch orstop to act with aspringclick,so that in turning it, its

position for setting or starting, and then, after use, the distance ofration from such starting-point, may be ascertained without thenecessity of looking at the indications by turning the stop to theclick. and then, after use, feeling the'number o'f notches from suchstop on .the wheel to the starting-point.

But that the invention may be fully understood, we will, by the aid ofthe accompanying drawings, proceed to-describe means pursued by us incarrying the same into effect.

- l Description of the Drawings.

Figures l and 2 showtwo opposite side-views, and

Figure?) a-niedge view, partly in section, of apparatus for takingsoundings, with our improvements applied to it.

Figure 4 is a horizontal section through the same.

Figures 5 and show .some of the parts on. a larger scale.

In 'each ot' the views the same let-terslare employed toindic'ate'corresponding parts wherever they'occur.

a a is the main framing carrying the various parts. b b; is theprotector or guardl over the vanes cl of the spindle c,but'whichprotector is-removed in iig. 1. Upon the spindle c is formcdthe threadc2, which takes into lthe teeth 'of the wheel d, to cause the rotationof that wheel on its exis as thespindlec is causedV to 4revolve by theaction of the water on the vanes ci1v as'the apparatus descends through'the water. This. wheel el is the {irst indicating-wheel; but,accordi-ng to the specication of the former patent, above referred to,the figures, in place of being applied to the face of-the wheel, areapplied to a. separate plate, c, capable of being moved thereon, andretained to the wheel 'd by spring-pressure;

According to our present improvements, a spindle from the plate-ecarries e' piniornf, so that the plate e rasoi 2 `and 'pinionf may movetogether, and the teeth of the pinionf gear with the teeth ot the secondindicating- -wheeh g, so that any movem'eiit of the plate e onA its axiseffects simultaneously a rotative movement of the secondindicating-wheelg. According to arrangement shown, this is effected inthe following manner: The wheel d revolves on a hollow stem, l, iitlixedto or forming part oi' the frame a; and at this part the wheel-fl isformed with a projecting neck,`2,. adapted to receive the hollow neck,3, of' the plato e. The n'eclr 2 of the wheel d is split, and the endsof the split parts are formed with a tendency to spring outwards, andthereby exert friction to retain the plate e from freelyrevolvipg'withont the'wheel el, except when pressure is exerted toovercome the foi-ceci` the spring-ends of the neck 2. The plate e iscapable of being thas-turned independently'oi` the wheel al, by actingon the projecting rim 4 thereof',` whiclr'prefer to oe milled. I' Aspindle, It, is formed with a head, h', at one end, and this headA isprovided with pins, 5 5, which pass into recesses formed `for lthem inthe rim 4, so thatthe platee and spindle t may rotate together. Thespindle/l, passes through the hollow stud 1,

l'and :it its other end receives thepinion'f, which is there fixed by apin passed through it and the spindle/l. jj

represent notches in cdgeof the plate e, opposite the respective figureson the plate, and 7c is a stop appliedto the. edge of the platee, toact, in the revolution of that plate, against the projection l from thecylinder Z1,

' which is actedon internally by the coiled spring wg, one end of whichrests against a pin, 6, standing out from the cylinder-Z', whilst theother end acts in a notch in the Ineck 'l-from the frame a. n is a studfromthe frame a, acting in a notch in the cylinder l', so as to regulateitsmotion. The projection Z thereby acts as a springclck, to admit ofthe passing of the projectionor stop c on the platee, with the movementof that plate in one direction, andto prevent its passing in theopposite direction, and thereby indicating the starting-point.

. According to arrangements of deep-water sounding-machines hithertogenerally in use, the Weight used to aid the descent o fl suchsounding-machines through the water is attached close upgto andimmediately under the lower part of such machines; and we End thatbyisuch arrangement the ivakeA ot' the weight in such positionmaterially interfereswith the correct registering of the machine, andthis evil is remedied by applying a rope or other connection, of someconsiderable length, between the weight and themnchine, when supportingsuch weight directly under the machine. We also find that it isimportant to have the length ofthisconnefctio'n between the weight andthe machine not less than two feet, though-we do not conne vourselves-tothis length; and we find it convenient to employ for this purpose arope, with its two endslconnected together, so as to form an endlessrope, oriwith a. loop at each end of it, and to connect the parts bylooping.

Having thus described our improvements, and meanswhich we adopt incarrying tne same into effect, we would have it understood that we donot confine ourselves to the precise arrangements of parts shown anddescribed, as these may be varied without departing from the peculiarcharacter of the invention; but

1. The combination .and arrangement of the disk-plate e, providedwithnumbers to correspond with the movements of one of the,indicating-wheels,- and connected by spring-pressure, so as to movewith such wheel, when geared to give motion to another indicating-wheel,so that any vmovement given to said plate maysimultaneously effect thecorresponding movement of such other indicating-wheel,l substantially asset forth.

i 2. The application of the spring-click Z and stop c to the disk-platee, to 4indicate the point of starting, substantially as shown anddescribed.

i 3. The application of the notches jj, or equivalent, iu combinationwith the stop It,A to the disk-plate e, in orde'r that the distance ofits partial rotation may-'be ascertained by feeling the same after use,substantially as set forth.

4,. We also claim the application of a rope, s, or equivalentconnection, between the sounding-machine and the weight used to 'aid thedescent of such machine, for preventing4 the action of theindicating-devices `from being impeded by the wake of such weight, asset forth. 'i

- THOS. WALKER. [L $.11 THOMAS FERDINAND WALKER. L. 5.] Witnesses:

GEORGE SHAW, Cannon' Street, Birmingham.- vRIGHARD SKERRETT, C'an'nonStreet, Birmingham.

